CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Operating revenues
Electric, non-affiliates	$ 1,383	$ 1,598	$ 3,590	$ 3,914
Electric, affiliates	130	132	368	394
Natural gas	65	102	563	703
Other	13	12	35	33
Total operating revenues	1,591	1,844	4,556	5,044
Operating expenses
Electric fuel and purchased power	570	750	1,593	1,857
Cost of natural gas sold and transported	22	65	364	510
Cost of sales — other	8	7	22	19
Operating and maintenance expenses	306	305	957	915
Conservation program expenses	27	45	83	135
Depreciation and amortization	249	256	713	759
Taxes (other than income taxes)	62	69	172	210
Total operating expenses	1,244	1,497	3,904	4,405
Operating income	347	347	652	639
Other expense, net	(7)	(4)	(5)	(9)
Allowance for funds used during construction — equity	9	9	26	21
Interest charges and financing costs
Interest charges — includes other financing costs of $2, $2, $6 and $6, respectively	81	75	241	216
Allowance for funds used during construction — debt	(5)	(4)	(15)	(9)
Total interest charges and financing costs	76	71	226	207
Income before income taxes	273	281	447	444
Income tax expense (benefit)	13	12	(79)	(70)
Net income	$ 260	$ 269	$ 526	$ 514